Question 1180976
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For each of the sections, multiply the probability of the pointer landing on that section times the number on the section.  Sum the products and divide by the number of sections.


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{\,\sum_{i=1}^9\,\frac{1}{9}\cdot i\,}{9}]


																
John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
*[illustration darwinfish.jpg]

From <https://www.algebra.com/cgi-bin/upload-illustration.mpl> 
I > Ø
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  
								
{{n}\choose{r}}
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